Combination turret-lathe.



s. K. LANms. COMBINATION TURRET LAI'HE.

APPLICATION FILED .IULY 30,1915.

Patented Jan. 1, 1918.

4 SHEETS-SHEET I.

INVENTOR WITNESSES:

. f77, AZ.

lef/D ATTORNEY S. K. LANDIS.

COMBINATION TURRET LATHE.

APPLICATION FILED IuLY 30,1915.

,Q5 1,5425 Patented Jan. l, 1918- 4 SHEETS-SHEET 2.

WITNESSES INVENTOR Samuel JI. Lancia@ S. K. LANDiS.

COMBINATION TURRET LATHE.

APPLICATION FILED JULY 30,1915.

. g ,542 Eatented Jan, l, -Q

4 SHEETS--SHEET 3.

S. K. LANMS. COMBINATION TURRET LATHE.

- APPLICATIQN man 1uLY 30.1915. 1,251,542. Param@ Jan. 1, 19m

' 4 SHEETS-SHEET 4@ f, Q h fo 4 l? I fl .N` C a si' 'o Likk- 'u R5 l o f f v S IQ cig. c.

y A'romsm SAMUEL K. LANnIs, or LANCASTER, PENNSYLVANIA COMBINATION TURRET-LATHE.

Specification of Letters Patent.

Patented Jan. 1,1918.y

Application led July 30, 1915i. Serial 1\l'o.4=2,710.V

To aZZ whom it may concern: Y

Be it known that I, SAMUEL K.1LANDIS, a citizen of the United States, residing at Lancaster in the county of Lancaster and State of laennsylvania, have invented cier-v tain new and useful Improvements in Combination Turret-Lathes, of whichthe fol-` lowing is a specification, reference being'h'ad therein to the accompanying drawing.v

This invention relates to an improved en-V gine lathe of the turret type in combination with the usual screw cutting and vturning lathe, thus providing a .lathe` which is not only adapted for thev usual class of work, but which is universal in many respects, and is adapted for milling, slotting, turning, cylinder boring and dressing, and nearly all classes of work, which it is required to do in a general shop or garage.

lIhe lathe also embraces several special features of construction, such as hand or power cross feed for the tool post on the turret, and the manner of driving the spindle in the head whereby a counter shaft is not required.

The object of the invention is to produce a combination lathe, which shall be simple, cheap, accurate and of very durable construction. Y

Another object is to provide a lathe of this class so constructed that it may be rapidly changed over or set up for turning, threa ing, boring, slotting, facing, milling, etc.

btill another object is to provide means whereby the lathe may be readily adaptedV for the internal boring and dressing of engine cylinders. j

lV ith these and other objects inview, my inventionV consists in certain construction and combination of kparts as will hereinafter be fully described and claimed in the speciication; and illustrated in the accompanying drawings, in which like figures of reference refer to corresponding parts in all of the views; but it is fully understood that while I have here described my invention as shown, that I do not confine myself to the exact design, as slight changes may be made in the construction and arrangement of the several parts without departing from the spirit of the invention or the scope of the claims. Y

In the drawings :Y-,

Figure 1, is a front elevation of the complete lathe, withl the vise secured to the tool post.

" Fig.2, is a top ,view of the samef Fig. 3,.1s an enlarged top view of the turret attachment in a reversed position.

Fig. 4, Vis a. sidev elevation of the IturretV attachment. l Y f Fig. 5, is an end view of the turret attachment wlth'a cross section of the lathe bed.

Fig. 6,V is av left hand end view of the-V lathe.

Fig. V7,7is a right hand end view of the-1 lathe. Y

Fig. 8,7is a detail view of the gear shifting mechanism.

y Figr9, is a detail top plan view of a bed plate attachment for the lathe for holding cylinders and the like.

Referring to the drawings, the lathe and rotatably rmounted the hollow spindle 25,Y

which carries Vthe driving mechanism 'which will be described later.

In place of the usual carriage and saddle, I have provided a special carriage member 6, which has longitudinal movement on the bed 1. and to the lower surface of which is secured a rack 35 inV mesh with the spur gear 36, which may bel rotated by the hand wheel 19 for longitudinal hand feed, -or which may be power driven for feeding `the carriage gmember v6, when the clutch 20, which may be of any suitable construction, is Voperated to engage and loclcwith `the wheel 19 so that the worm wheel 38 will be driven bythe `feed screw 15, supported in the bearings upon the bed 1, whereby said carriage member 6 may be fed in either direction-on the bed 1 by either hand or power as desired.

Pivoted upon said carriage member 6, b the pivot bolt 39, is a turret base or plate 5, which is formed with one square end and onerounded end, and having the usual T- slotsl, and tapped holes 63.

Upon the squared portion of this plate 5, is formed a raised guide way upon which is mounted in the usual way across slide 7,

which carries a swivel'tool lpost member,v

both theV cross slide 7, and the tool Vpest member being fed in the usual way by the hand operated feed screw, 46. f The method of applying power feed to said cross slide 7 is as follows Upon the feed screw 46, is mounted a spur gear 45, adapted to mesh with a `spur gear 44, mounted on a stud shaft 42, carried a bracket 40, which may be detachably secured to the plate 5, by the bolt 41; while upon said stud shaft 42, is alsosecured a worm wheel 43, provided with teeth of such a cut or pitch, that when the turret 5, is swung into the position shown in Fig. 1, the teeth of the worm wheel 43 will engage and ride on the threads of the feed screw 15 and the worm wheel 43 revolved thereby for actuating the feed screw 46.

Vhen the turret is in this position an adjusting screw 61 will Colne in contact with a stop 62 secured to the plate 6, and this brings the cross feed at an exact right angle to the bed 1 with the worm wheel 48 in engagement with the feed screw l5, but when the turret is swung to the position shown in Fig. 3, or opposite to that shown in Fig. 1, the adjusting` screw 61 will be remote from the stop 62, and which stop may be turned down when not in use as shown in Fig. 3.

Various tools or jigsl may be secured to the turret plate 5, by the T-slots 47, or holes 63, as is shown by the bracket 21, which is arranged to hold a thread cutting die 64, which may bebrought into line for work by swinging the turret plate 5.

For milling similar work I have providedy a vise 22, which has Vthe usual jaw member 56, and operating screws'55, and which is slidably mounted on the back plate 51, and adjusted by the screw 58, the back plate 51 carrying the vise being pivoted, asy at 50, toan angle member 48, so that the vise may be swiveled as desired.

The angle member 48 is formed with a hole in its lower portion or base so that it may be slipped over the tool post, and a bar or' key 49 is then inserted in place of a tool throughthe tool post, Vand upon the base of themember 48, and held rigid therein by the tool holding screw, whereby to secure the member 48 in operative position upon the tool post.

By holding the work to be milled in the jaws of the vise 22 and by holding a mandrel having a milling cutter in the jaws 0f the clutch 8, milling, slotting, or circular sawing may be done.

By removing the vise 22 from this angle member 48, the member 48 may be employed as a workfrest or 'drill plate.

By removing the angle member 48 from the tool post and inserting a tool in the place of the key 49, the turret may be used ink the. usual manner, but when employed as a turret, is not used with work held between the centers.

lFor clamping work on the lathe for lthe purposerof boring, turning, or facing such pieces as cylinders, I have provided (as shown in Fig. 9) a bed plate 65, which is secured to the carriage member 6 by the bolts 66, which engage the threaded ears suitably secured upon the ends of the earkriage member 6, while the underside of said plate 65, is formed with two transverse grooves 67, within which are placed the adjusting wedges 68, which are used to slightly raise or lower said bed plate 65, to center the work which is clamped upon its upper surface by bolts placedin the T-slots 69. As this plate is secured to the carriage member 6, it moves with it to feed the work to the boring bar or other tool which may be held in the chuck 8.

The. reversing mechanism, shown in` nig. 8, is provided for reversing the direction of rotation ofthe lead screw 15 and consists of the arm 17, having an eye in its upper portion for surrounding the spin-V dle 25 for pivotally mounting the arm 17` thereon, and also having a slot in its lower portion adapted to receive a bolt to adjustably secure the arm 17 in any suitableposi tion upon the `head stock 4. Pivotally mounted upon the arm 17 is the plate 16, adapted to carry a plurality of idler gears 14 which are interposed between and `designed to connect the gear 57 upon the outer end'of the spindle 25 with the gear 57 a upon the adjacent end of the feed screw 15 for reversing the movement of the turret, as desired, by the manipulation of the hand lever 18 of the plate 16, for bringing a respective idler gear 14 into operative engagement with the gear 57 upon the spindle 25.

The drive ulley 9 is loosely mounted upon the spint le 25,`and is driven by direct power and without any counter shaft, thus being driven in constant revolution in one direction.v

To operate the lathe for turning, thepiece of -workisset between the centers in the usual way, Athe' turretplate 5 is then set in positionso ,that the tool carriage 7 is in proper position for holding the turning tool, or the lathe may be set up to accomplish the other classes of workhereinbefore set forth, and by throwing the hand lever 13'to the right, the clutehll through the medium of the lever 12 is moved to engage the drive pulley 9 to revolve the spindle 25 in the same direction as the pulley 9 revolves. To reverse the direct-ion ofthe spindle 25, when desired, the hand lever 13 is thrown to the left past neutral, thus releasing the clutch 11 from the pulley 9,` and Vcausing the friction band 32 through the medium ofthe bar 34 to be brought into operation in a manner that the step pulley 9 will revolve the spindle 25 in the opposite direction to that of the stop pulley 9.

As the specific mechanism for driving and reversing the spindle forms no part of this application and is specifically described and claimed in another application, only suilicient reference has been made to this feature to more clearly describe the operation of the lathe.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a lathe of the class described, comprising a head stock, a turret member mounted upon a bed, a. tool post slidably mounted on said turret, means for sliding said tool post upon said turret member by hand or power, means for swiveling said turret, a swinging arm upon said bed, and a stop member upon said turret for engaging said arm to bring the cross feed of the turret at right angles to the bed.

2. In a lathe of the class described, the combination with a bed having a head stock integral therewith and a chuck therein, of a turret carriage mounted on said bed with longitudinal movement and a turret pivoted upon said carriage having means for adjusting the same by a cross tool feeding means mounted on said turret, a tool post mounted thereon, and an angle block detachably secured to said tool post.

3. In a lathe of the class described, the combination with a bed having a head stock integral therewith and a chuck therein, of a turret carriage mounted on said bed with longitudinal movement and a turret pivoted upon said carriage having means for adjusting the same by a cross tool feeding means mounted on said turret, a tool post mounted thereon, and an angle block detachably secured to said tool post; with a vise detachably and adjustably secured to said angle block for presentingV work to be operated upon by a tool carried by said chuck.

4. In a lathe of the class described, the combination with a bed having a head stock integral therewith, and a chuck rotatably mounted therein, and adapted to carry a boring tool, a turret carriage bed adapted to be moved longitudinally along said bed, and a plate removably secured upon said turret carriage bed and provided with transverse dove-tailed grooves therein adapted to receive securing members for supporting an object thereon, whereby to present said object to be operated upon by the tool of said chuck.

5. A turret lathe of the class described, comprising in combination a bed having supporting means, a head stock mounted thereon and carrying a tool chuck and spindle, driving mechanisms mounted in said head for revolving said chuck and spindle, a carriage slidably mounted on said bed and adapted to be manually or automatically actuated as desired, a turret secured upon said carriage and adapted to revolve thereon, and a compound rest mounted upon said turret.

In testimony whereof I affix my signature in presence of two witnesses.

Y SAMUEL K. LANDIS.

Witnesses:

W. H. FORMAN, A. F. SHENCK.

Copies ot this patent may be obtained tor ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

